digitalmars.D - Mutation Testing Framework ?

Does D have a mutation testing framework (e.g., Java has PIT
Testing http://pitest.org ) ? If not, what tools / libraries
would I use to build such a framework ( I have some extra time to
contribute to an open source project :-) ) ? Cheers !
P.S The idea of mutation testing is uber cool. It's essentially a
way to test your unit tests.